engleski

The effect of vanadium content on the properties of Fe-C-Cr-V white cast iron

The effect of the variation in vanadium concentration in a guasi four-component alloy of the Fe-C-Cr-V type on the wear and fracture resistance, and on the hardness and microstructure of as-cast and heat-treated samples was investigated. The wear resistance was examined using a comparative method on a ''Taber Abraser'' device, model 503. The addition of vanadium in the range from 1 to 11 wt. % significantly changed the solidification morphology of the white cast iron. As a result of microstructural changes, induced by the addition of vanadium and by heat treatment, a proportional increase in the hardness and wear - resistance values was noted. The impact - resistance values were not affected by the vanadium - induced morphological changes of the eutectic carbides to any great extent, althogh they were increased, by heat treatment.

white cast iron; vanadium; microstructure; wear resistance; impact resistance

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